This is not for SocialEngine Unite as it doesn't use index.php. Are you sure you are using SE Unite? You've posted in that area. Note that I can move this to the SE PHP area if needed. Also, mod_rewrite and your .htaccess handle the short urls. You would check on that.

Rather than delete your post, I edited it this last time to add the code tags. Please use the button to the right of the smiley button when adding code per the forum terms. Thanks. Perhaps your host can help? I know this works fine at BryZar with the standard htaccess but I am not sure of your hosts configurations.

I do own it with a partner and it is the recommended host for SocialEngine. My partner can check the sites and recommend but normally the 2GB plan works fine. It depends on plugins installed really. Some are heavy and some are not. There's also a $25 credit towards many of the plans, one time credit in the account that can be used monthly until used up. https://www.socialengine.com/support/hosting-providers